Kinetic study of vinyl polymerization with a new oligo azo peroxidic initiator

Oligo (4,4'-azobis-cyanopentanoyl-5-peroxy-2,5-dimethyl-n-hexylperoxide), Lu-Ab, was synthesized by the interfacial condensation of 4,4'-azobis-(4-cyanopentanoyl chloride) with 2,5-dimethyl-2,5-dihydroperoxyhexane in the presence of a base. The molecular weight of the initiator was determined to be 1586 g/mol by gel permeation chromatography (GPC). Oligo-azoperoxide, Lu-Ab, was characterized by infrared and nuclear magnetic resonance spectroscopies. Styrene and methyl methacrylate were separately polymerized with Lu-Ab at 60°C by free radical low conversion polymerization in order to calculate kinetic parameters. In these units needed connection overall rate constants (k) and kt/k2 p were found to be 1.86 × 10-4 L mol-1 s-1 and 1.22 × 103 L-1 mol s for styrene; 3.73 × 10-4 L mol-1 s-1 and 0.21 × 103 L-1 mol s for methyl methacrylate, respectively. Lu-Ab is an initiator without chain transfer to initiator, like azobisisobutyronitrile (AIBN) but is only half as effective as AIBN. © 1997 Elsevier Science Ltd.

Yazar Volga, Cüneyt
Hazer, Baki
Torul, Oktay
Yayın Türü Article
Tek Biçim Adres https://hdl.handle.net/20.500.12628/6435
Tek Biçim Adres 10.1016/S0014-3057(96)00181-4
Koleksiyonlar Fakülteler
Fen Edebiyat Fakültesi
Kimya Bölümü
Makale Koleksiyonu (Kimya Bölümü)
Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD
Scopus İndeksli Yayınlar Koleksiyonu
Dergi Adı European Polymer Journal
Dergi Cilt Bilgisi 33
Dergi Sayısı 6
Sayfalar 907 - 912
Yayın Yılı 1997
Eser Adı
[dc.title]
Kinetic study of vinyl polymerization with a new oligo azo peroxidic initiator
Yazar
[dc.contributor.author]
Volga, Cüneyt
Yazar
[dc.contributor.author]
Hazer, Baki
Yazar
[dc.contributor.author]
Torul, Oktay
Yayın Yılı
[dc.date.issued]
1997
Yayıncı
[dc.publisher]
Elsevier Ltd
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Oligo (4,4'-azobis-cyanopentanoyl-5-peroxy-2,5-dimethyl-n-hexylperoxide), Lu-Ab, was synthesized by the interfacial condensation of 4,4'-azobis-(4-cyanopentanoyl chloride) with 2,5-dimethyl-2,5-dihydroperoxyhexane in the presence of a base. The molecular weight of the initiator was determined to be 1586 g/mol by gel permeation chromatography (GPC). Oligo-azoperoxide, Lu-Ab, was characterized by infrared and nuclear magnetic resonance spectroscopies. Styrene and methyl methacrylate were separately polymerized with Lu-Ab at 60°C by free radical low conversion polymerization in order to calculate kinetic parameters. In these units needed connection overall rate constants (k) and kt/k2 p were found to be 1.86 × 10-4 L mol-1 s-1 and 1.22 × 103 L-1 mol s for styrene; 3.73 × 10-4 L mol-1 s-1 and 0.21 × 103 L-1 mol s for methyl methacrylate, respectively. Lu-Ab is an initiator without chain transfer to initiator, like azobisisobutyronitrile (AIBN) but is only half as effective as AIBN. © 1997 Elsevier Science Ltd.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Künye
[dc.identifier.citation]
Volga, C., Hazer, B. ve Torul, O. (1997). Kinetic study of vinyl polymerization with a new oligo azo peroxidic initiator. European Polymer Journal, 33(6), 907-912. doi:10.1016/S0014-3057(96)00181-4
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0014-3057
İlk Sayfa Sayısı
[dc.identifier.startpage]
907
Son Sayfa Sayısı
[dc.identifier.endpage]
912
Dergi Adı
[dc.relation.journal]
European Polymer Journal
Dergi Sayısı
[dc.identifier.issue]
6
Dergi Cilt Bilgisi
[dc.identifier.volume]
33
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1016/S0014-3057(96)00181-4
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/6435
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initiator methyl methacrylate constants overall styrene (AIBN) Science Elsevier effective azobisisobutyronitrile transfer without needed respectively connection conversion presence determined weight molecular 5-dihydroperoxyhexane chromatography 5-dimethyl-2 chloride) -azobis-(4-cyanopentanoyl condensation interfacial synthesized 5-dimethyl-n-hexylperoxide) -azobis-cyanopentanoyl-5-peroxy-2 permeation parameters kinetic calculate
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